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Finding the Fourth Proportional to 203,185.95, 304,779.94 and 83,308.38

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Solution

The fourth proportional to 203,185.95, 304,779.94 and 83,308.38 is: 124,962.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,185.95 : 304,779.94 = 83,308.38 : x
  2. Step 2: Convert to fraction form
    203,185.95/304,779.94 = 83,308.38/x
  3. Step 3: Cross multiply
    203,185.95x = 304,779.94 × 83,308.38
  4. Step 4: Simplify right side
    203,185.95x = 25,390,723,057.90
  5. Step 5: Solve for x
    x = 25,390,723,057.90/203,185.95
  6. Step 6: Final answer
    x = 124,962.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.